For a limited time, you can get the Texas Instruments TI-84 Plus CE Graphing Calculator for only $112 (reg. $149.95) at Walmart. You save 25% off the retail price for this graphing calculator. Plus, this item ships free. This is the lowest price we could find online by about $13. The Texas Instruments TI-84 Plus CE Graphing Calculator is approved for use on the following exams: PSAT, SAT, ACT college entrance exams; AP exams, IB exams. Sales tax is charged in most states. Deal expires soon.